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Finding the Fourth Proportional to 31,966.92, 44,113.44 and 18,354.56

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Solution

The fourth proportional to 31,966.92, 44,113.44 and 18,354.56 is: 25,328.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,966.92 : 44,113.44 = 18,354.56 : x
  2. Step 2: Convert to fraction form
    31,966.92/44,113.44 = 18,354.56/x
  3. Step 3: Cross multiply
    31,966.92x = 44,113.44 × 18,354.56
  4. Step 4: Simplify right side
    31,966.92x = 809,682,781.29
  5. Step 5: Solve for x
    x = 809,682,781.29/31,966.92
  6. Step 6: Final answer
    x = 25,328.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.